So far in our Elite Status Series, weâve covered American, Delta and Southwest. Today, TPG contributor Jason Steele takes us through the basics of United Premier Silver status â how you can qualify for it and maximize the benefits once you earn it. Unless you have a last-minute mileage run planned, itâs probably too late to worry about achieving status during the 2013 calendar year.
backfire - a loud noise made by the explosion of fuel in the manifold or exhaust of an internal combustion engine blowup, detonation, explosion - a violent release of energy caused by a chemical or nuclear reaction
(Note: Afterfire and/or Backfire will not harm the engine at all!). Backfiring is a condition described as a loud bang, poof, explosion, etc. when idling the engine down, or after the engine has been shut off.Afterfire occurs after the engine has been shut off. Some possible causes include: Shutting off the engine at high RPM.This can result in some fuel being pumped through the engine and into the hot muffler, causing that fuel to ignite. Gasoline that contains alcohol has a tendency to ignite easier, plus cause the engine to run slightly hotter. This, combined with a hot muffler, can cause afterfire.Note: Afterfire and/or Backfire will not harm the engine at all!). Backfiring is a condition described as a loud bang, poof, explosion, etc. when idling the engine down, or after the engine has been shut off.